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[autoboot] Allow setting expansions in filename and root-path

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Allow the DHCP filename and root-path to contain settings expansions,
such as

  http://boot.ipxe.org/demo/boot.php?mac=${mac:hexhyp}

Originally-implemented-by: Jarrod Johnson <jarrod.b.johnson@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2011-01-28 00:24:05 +00:00
parent 990cbb8f2c
commit 3ed849bbf2
1 changed files with 32 additions and 10 deletions
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42
src/usr/autoboot.c
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@ -230,7 +230,9 @@ static void close_all_netdevs ( void ) {
*/
struct uri * fetch_next_server_and_filename ( struct settings *settings ) {
struct in_addr next_server;
char filename[256];
char buf[256];
char *filename;
struct uri *uri;
/* Fetch next-server setting */
fetch_ipv4_setting ( settings, &next_server_setting, &next_server );
@ -239,11 +241,20 @@ struct uri * fetch_next_server_and_filename ( struct settings *settings ) {
/* Fetch filename setting */
fetch_string_setting ( settings, &filename_setting,
filename, sizeof ( filename ) );
if ( filename[0] )
printf ( "Filename: %s\n", filename );
buf, sizeof ( buf ) );
if ( buf[0] )
printf ( "Filename: %s\n", buf );
return parse_next_server_and_filename ( next_server, filename );
/* Expand filename setting */
filename = expand_settings ( buf );
if ( ! filename )
return NULL;
/* Parse next server and filename */
uri = parse_next_server_and_filename ( next_server, filename );
free ( filename );
return uri;
}
/**
@ -253,15 +264,26 @@ struct uri * fetch_next_server_and_filename ( struct settings *settings ) {
* @ret uri URI, or NULL on failure
*/
static struct uri * fetch_root_path ( struct settings *settings ) {
char root_path[256];
char buf[256];
char *root_path;
struct uri *uri;
/* Fetch root-path setting */
fetch_string_setting ( settings, &root_path_setting,
root_path, sizeof ( root_path ) );
if ( root_path[0] )
printf ( "Root path: %s\n", root_path );
buf, sizeof ( buf ) );
if ( buf[0] )
printf ( "Root path: %s\n", buf );
return parse_uri ( root_path );
/* Expand filename setting */
root_path = expand_settings ( buf );
if ( ! root_path )
return NULL;
/* Parse root path */
uri = parse_uri ( root_path );
free ( root_path );
return uri;
}
/**